They're seriously running with the "old fish as vaguely sexist" idea.
Marsha Blackburn says, "It's what women of America are beginning to see. Because Senator Obama had the choice of Senator Clinton or Governor Sebelius to go in the number two spot on that ticket. He passed over them. The comments he made last night. He followed the lipstick on a pig comment with talking about old fish wrapped in paper. Senator Obama is a smart man. And he is very highly educated. And I think that it was unfortunate. He knew what he was speaking, the words he was speaking."
From "McCain Camp: Fish Wrapped in Paper is Now Sexist, Too"